例外是柏拉图，我将授课的，也许要两节课，我会重新构建柏拉图中心理论，至少这部分理论是和我们的课相关的。

The exception is Plato, where I'll lecture, maybe two lectures, trying to reconstruct Plato's central arguments, at least the arguments relevant to our class.

youdao

有趣的是，在高年级，每天有八到九节课，而每位老通常每天只上两节课（每节课一般十五分钟）。

Interestingly, in the upper grades, teachers typically teach just two periods a day (typically 45 minutes in length) out of eight or nine periods.

youdao

以两节课的时间讨论问题和基本的方法-课堂授课20 (PDF)和课堂授课24 (PDF)。最后一节课是展示期末专题的程序。

Two classes on discussion on problem and basic approaches - Lecture 20 (PDF) and Lecture 24 (PDF). Final class will be in class demonstrations of the final project program.

youdao

I said this sentence in one of the first two classes, 'all cells are the same', and you know that's true.

我曾在头两节课的哪里讲过,所有细胞都是一样的,你们知道的

耶鲁公开课 - 生物医学工程探索课程节选

The exception is Plato, where I'll lecture, maybe two lectures, trying to reconstruct Plato's central arguments, at least the arguments relevant to our class.

例外是柏拉图，我将授课的，也许要两节课，我会重新构建柏拉图中心理论，至少这部分理论是和我们的课相关的。

耶鲁公开课 - 死亡课程节选

Boy, there's a dumb question, because I've been telling you n log n for the last two lectures the complexity is n log n, but let's see if it really is.

孩子们，这是一个愚蠢的问题，因为前两节课的时候我就已经告诉你们了,复杂度是,但是让我们来看一下是不是真的是这样。

麻省理工公开课 - 计算机科学及编程导论课程节选